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Title: Chemical kinetics in an atmospheric pressure helium plasma containing humidity

Abstract

Atmospheric pressure plasmas are sources of biologically active oxygen and nitrogen species, which makes them potentially suitable for the use as biomedical devices. Here, experiments and simulations are combined to investigate the formation of the key reactive oxygen species, atomic oxygen (O) and hydroxyl radicals (OH), in a radio-frequency driven atmospheric pressure plasma jet operated in humidified helium. Vacuum ultra-violet high-resolution Fourier-transform absorption spectroscopy and ultra-violet broad-band absorption spectroscopy are used to measure absolute densities of O and OH. These densities increase with increasing H 2O content in the feed gas, and approach saturation values at higher admixtures on the order of 3 × 10 14 cm -3 for OH and 3 × 10 13 cm -3 for O. Experimental results are used to benchmark densities obtained from zero-dimensional plasma chemical kinetics simulations, which reveal the dominant formation pathways. At low humidity content, O is formed from OH + by proton transfer to H 2O, which also initiates the formation of large cluster ions. At higher humidity content, O is created by reactions between OH radicals, and lost by recombination with OH. OH is produced mainly from H 2O + by proton transfer to H 2O and by electron impactmore » dissociation of H 2O. It is lost by reactions with other OH molecules to form either H 2O + O or H 2O 2. Formation pathways change as a function of humidity content and position in the plasma channel. The understanding of the chemical kinetics of O and OH gained in this work will help in the development of plasma tailoring strategies to optimise their densities in applications.« less

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [3];  [1]; ORCiD logo [1]; ORCiD logo [1];  [4];  [4]; ORCiD logo [5]; ORCiD logo [6]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
  1. University of York, Heslington, York (United Kingdom). York Plasma Institute, Department of Physics
  2. University of York, Heslington, York (United Kingdom). York Plasma Institute, Department of Physics ; Université Paris-Saclay, Sorbonne Universités, PSL Research University, Palaiseau (France). LPP, CNRS, Ecole Polytechnique, UPMC Univ. Paris-Sud, Observatoire de Paris
  3. University of York, Heslington, York (United Kingdom). York Plasma Institute, Department of Physics and Centre of Immunology and Infection, Department of Biology and Hull York Medical School
  4. Synchrotron Soleil, l'Orme des Merisiers, Gif sur Yvette Cedex (France)
  5. Univ. of Michigan, Ann Arbor, MI (United States). Department of Electrical Engineering and Computer Science
  6. Université Paris-Saclay, Sorbonne Universités, PSL Research University, Palaiseau (France). LPP, CNRS, Ecole Polytechnique, UPMC Univ. Paris-Sud, Observatoire de Paris
Publication Date:
Research Org.:
Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1470577
Alternate Identifier(s):
OSTI ID: 1483482
Grant/Contract Number:  
SC0014132; SC0001319
Resource Type:
Published Article
Journal Name:
Physical Chemistry Chemical Physics. PCCP (Print)
Additional Journal Information:
Journal Name: Physical Chemistry Chemical Physics. PCCP (Print); Journal Volume: 20; Journal Issue: 37; Journal ID: ISSN 1463-9076
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Schröter, Sandra, Wijaikhum, Apiwat, Gibson, Andrew R., West, Andrew, Davies, Helen L., Minesi, Nicolas, Dedrick, James, Wagenaars, Erik, de Oliveira, Nelson, Nahon, Laurent, Kushner, Mark J., Booth, Jean-Paul, Niemi, Kari, Gans, Timo, and O'Connell, Deborah. Chemical kinetics in an atmospheric pressure helium plasma containing humidity. United States: N. p., 2018. Web. doi:10.1039/c8cp02473a.
Schröter, Sandra, Wijaikhum, Apiwat, Gibson, Andrew R., West, Andrew, Davies, Helen L., Minesi, Nicolas, Dedrick, James, Wagenaars, Erik, de Oliveira, Nelson, Nahon, Laurent, Kushner, Mark J., Booth, Jean-Paul, Niemi, Kari, Gans, Timo, & O'Connell, Deborah. Chemical kinetics in an atmospheric pressure helium plasma containing humidity. United States. doi:10.1039/c8cp02473a.
Schröter, Sandra, Wijaikhum, Apiwat, Gibson, Andrew R., West, Andrew, Davies, Helen L., Minesi, Nicolas, Dedrick, James, Wagenaars, Erik, de Oliveira, Nelson, Nahon, Laurent, Kushner, Mark J., Booth, Jean-Paul, Niemi, Kari, Gans, Timo, and O'Connell, Deborah. Thu . "Chemical kinetics in an atmospheric pressure helium plasma containing humidity". United States. doi:10.1039/c8cp02473a.
@article{osti_1470577,
title = {Chemical kinetics in an atmospheric pressure helium plasma containing humidity},
author = {Schröter, Sandra and Wijaikhum, Apiwat and Gibson, Andrew R. and West, Andrew and Davies, Helen L. and Minesi, Nicolas and Dedrick, James and Wagenaars, Erik and de Oliveira, Nelson and Nahon, Laurent and Kushner, Mark J. and Booth, Jean-Paul and Niemi, Kari and Gans, Timo and O'Connell, Deborah},
abstractNote = {Atmospheric pressure plasmas are sources of biologically active oxygen and nitrogen species, which makes them potentially suitable for the use as biomedical devices. Here, experiments and simulations are combined to investigate the formation of the key reactive oxygen species, atomic oxygen (O) and hydroxyl radicals (OH), in a radio-frequency driven atmospheric pressure plasma jet operated in humidified helium. Vacuum ultra-violet high-resolution Fourier-transform absorption spectroscopy and ultra-violet broad-band absorption spectroscopy are used to measure absolute densities of O and OH. These densities increase with increasing H2O content in the feed gas, and approach saturation values at higher admixtures on the order of 3 × 1014 cm-3 for OH and 3 × 1013 cm-3 for O. Experimental results are used to benchmark densities obtained from zero-dimensional plasma chemical kinetics simulations, which reveal the dominant formation pathways. At low humidity content, O is formed from OH+ by proton transfer to H2O, which also initiates the formation of large cluster ions. At higher humidity content, O is created by reactions between OH radicals, and lost by recombination with OH. OH is produced mainly from H2O+ by proton transfer to H2O and by electron impact dissociation of H2O. It is lost by reactions with other OH molecules to form either H2O + O or H2O2. Formation pathways change as a function of humidity content and position in the plasma channel. The understanding of the chemical kinetics of O and OH gained in this work will help in the development of plasma tailoring strategies to optimise their densities in applications.},
doi = {10.1039/c8cp02473a},
journal = {Physical Chemistry Chemical Physics. PCCP (Print)},
number = 37,
volume = 20,
place = {United States},
year = {2018},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
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DOI: 10.1039/c8cp02473a

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Cited by: 4 works
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Figures / Tables:

Fig. 1 Fig. 1: (a) Schematic cross-section and (b) photograph of the plasma source. The perpendicular orientation of the synchrotron vacuum ultraviolet (VUV) beam with respect to the plasma channel is indicated by the dashed rectangle. Images taken from Dedrick et al., under a Creative Commons Attribution 3.0 licence (https://creativecommons.org/licenses/ by/3.0/).

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Kinetic scheme of the non-equilibrium discharge in nitrogen-oxygen mixtures
journal, August 1992

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High‐pressure range of the addition of HO to HO. III. Saturated laser‐induced fluorescence measurements between 200 and 700 K
journal, July 1996

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Combining experimental and modelling approaches to study the sources of reactive species induced in water by the COST RF plasma jet
journal, January 2018

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Rate constants and cross sections for the production of OH- from O- and H- in water
journal, December 1971

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Visible tumor surface response to physical plasma and apoptotic cell kill in head and neck cancer
journal, September 2016

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Pressure broadening parameters of the hydroxyl radical A 2 ?+ (??=0) ? X 2 ?3/2 (?=0) transitions at ca. 308 nm
journal, February 2005


O2(Δ1) production in He∕O2 mixtures in flowing low pressure plasmas
journal, September 2004

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Electron collisions with diatomic anions
journal, October 1999


Investigations of the spatio-temporal build-up of atomic oxygen inside the micro-scaled atmospheric pressure plasma jet
journal, September 2010


He+O2+H2O plasmas as a source of reactive oxygen species
journal, May 2011

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Laboratory studies of negative ion reactions with atmospheric trace constituents
journal, October 1974

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Highly vibrationally excited O 2 molecules in low-pressure inductively-coupled plasmas detected by high sensitivity ultra-broad-band optical absorption spectroscopy
journal, July 2015


Tracking plasma generated H 2 O 2 from gas into liquid phase and revealing its dominant impact on human skin cells
journal, June 2014


Numerical study of the influence of surface reaction probabilities on reactive species in an rf atmospheric pressure plasma containing humidity
journal, November 2017

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Temperature dependence of the mobility and association rate coefficient of He + ions in He from 30-350K
journal, July 1983

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O( 1 S ) interactions—the product channels
journal, February 1978

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Applied Plasma Medicine
journal, August 2008

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ICR determination of kinetically excited ions produced in water and methane by charge transfer from thermal rare gas ions
journal, March 1978

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Mass spectrometric investigation of the ionic species in a dielectric barrier discharge operating in helium-water vapour mixtures
journal, February 2015


Influence of air diffusion on the OH radicals and atomic O distribution in an atmospheric Ar (bio)plasma jet
journal, February 2014


Electron attachment to molecules and clusters of atmospheric relevance: oxygen and ozone
journal, May 1997

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Product-ion distributions for some ion-molecule reactions
journal, June 1976


Absolute OH and O radical densities in effluent of a He/H 2 O micro-scaled atmospheric pressure plasma jet
journal, June 2016


Atomic oxygen formation in a radio-frequency driven micro-atmospheric pressure plasma jet
journal, June 2010


Corrigendum: Kinetic modelling for an atmospheric pressure argon plasma jet in humid air (2013 J. Phys. D: Appl. Phys. 46 275201)
journal, January 2014


High pressure range of the addition of HO to HO, NO, NO 2 , and CO. I. Saturated laser induced fluorescence measurements at 298 K
journal, August 1995

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Femtosecond, two-photon laser-induced-fluorescence imaging of atomic oxygen in an atmospheric-pressure plasma jet
journal, May 2015

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The component content of active particles in a plasma-chemical reactor based on volume barrier discharge
journal, November 2006

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Oxidative stress: oxidants and antioxidants
journal, March 1997


A drift chamber study of the formation of water cluster ions in oxygen
journal, November 1980

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Air plasma treatment of liquid covered tissue: long timescale chemistry
journal, September 2016


Product distributions and rate constants for ion‐molecule reactions in water, hydrogen sulfide, ammonia, and methane
journal, November 1973

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Comparison of femtosecond- and nanosecond-two-photon-absorption laser-induced fluorescence (TALIF) of atomic oxygen in atmospheric-pressure plasmas
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Comparison of a global model to semi-kinetic fluid simulations for atmospheric pressure radio-frequency plasmas
journal, May 2013


Pressure broadening of atomic oxygen two-photon absorption laser induced fluorescence
journal, November 2016


Behavior of rate coefficients for ion-ion mutual neutralization, 300–550 K
journal, May 2012

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Collisional Deactivation of O2(1Δg)
journal, July 1971

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Cross-section and rate coefficient calculation for electron impact excitation, ionisation and dissociation of H2 and OH molecules
journal, July 2006


Electron-temperature dependence of recombination of electrons with H 3 O + · ( H 2 O ) n -series ions
journal, July 1978

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Measurements of the Recombination of Electrons with H 3 O + · ( H 2 O ) n -Series Ions
journal, January 1973


Low-temperature plasma treatment induces DNA damage leading to necrotic cell death in primary prostate epithelial cells
journal, April 2015

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A laboratory study of the reactions of N+, N2+, N3+, N4+, O+, O2+, and NO+ ions with several molecules at 300 K
journal, January 1978

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Absolute ozone densities in a radio-frequency driven atmospheric pressure plasma using two-beam UV-LED absorption spectroscopy and numerical simulations
journal, October 2017

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Numerical analysis of the effect of nitrogen and oxygen admixtures on the chemistry of an argon plasma jet operating at atmospheric pressure
journal, March 2015


The role of helium metastable states in radio-frequency driven helium–oxygen atmospheric pressure plasma jets: measurement and numerical simulation
journal, August 2011